another 'I need to find a wedding outfit online' thread

I've got a wedding to go to in 3 weeks and I think my chances of actually going shopping are slim... had my first baby a month ago and it looks like it's just not going to happen! So really need to get something online.

Ideally I'd like to find something that will do again for another wedding mid-October. I need to be able to feed in it as well - so nothing I already have will do.

I'm about a size 10 I think - relatively slim, nothing in particular I need to either hide or flash. Pre-maternity/baby I'd be in sort of White Stuff type things for day-wear, and maybe Monsoon/Whistles for special occasions. I'm in my late 30s so don't want to be mutton dressed as lamb...

can anyone help? I have lost all sense of what looks good really... eg is this awful or quite nice?